20120573456

素因数分解:

$2^4\times {\mathrm{421}}^1\times {\mathrm{2987021}}^1$

素因数の和:2987450

約数の個数: 20

約数和(自身を含む): 39076221804

約数和(自身を除く): 18955648348

約数列:

[1, 2, 4, 8, 16, 421, 842, 1684, 3368, 6736, 2987021, 5974042, 11948084, 23896168, 47792336, 1257535841, 2515071682, 5030143364, 10060286728, 20120573456]

約数ペア:

[(1, 20120573456), (2, 10060286728), (4, 5030143364), (8, 2515071682), (16, 1257535841), (421, 47792336), (842, 23896168), (1684, 11948084), (3368, 5974042), (6736, 2987021)]